To ensure that the aforementioned flood damage controls are being employed in all-new construction and improvements within the Floodplain Conservation District, the Building Inspector shall provide the applicant information concerning the location of the District boundaries relative to his proposed construction or improvements and the water surface elevation of the one-hundred-year flood at the proposed construction site. The source of the information concerning the district boundary shall be the Flood Insurance Study for the Borough of Trappe prepared by the Federal Emergency Management Agency, Federal Insurance Administration. The source for the information concerning the base flood elevation shall be the Flood Insurance Study for those floodplains where this study contains this information; for other floodplain areas, including the General Floodplain as delineated on the Flood Insurance Rate Map which accompanies the Flood Insurance Study, the base flood elevation shall be determined as specified in § 173-20.
In addition to the permit application requirements
normally required under the Borough of Trappe Building Code,[1] as amended, the Borough Building Inspector shall require
the following specific information to be included as part of the application
for a building permit:
A.
For structures to be elevated:
(1)
A plan showing the size of the proposed structure
and its relation to the lot where it is to be constructed.
(2)
A determination of elevations of the existing ground,
proposed finished ground, and lowest floors certified by a registered
professional engineer, surveyor or architect.
(3)
Plans showing the method of elevating the proposed
structures, including details of proposed fills, pile structures,
retaining walls, foundations, erosion protection measures, etc. When
required by the Building Inspector, these plans shall be prepared
by a registered professional engineer or architect.
(4)
Plans showing the methods used to protect utilities
(including sewer, water, telephone, electric, gas, etc.) from flooding
to an elevation at least 1 1/2 feet above the base flood elevation
at the building site.
B.
For structures to be floodproofed:
(1)
Plans showing details of all floodproofing measures,
prepared by a registered professional engineer or architect, and showing
the size of the proposed structure and its relation to the lot where
it is to be constructed.
(2)
A determination of elevations of existing ground,
proposed finished ground, lowest floors, and floodproofing limits;
certified by a registered professional engineer, surveyor or architect.
(3)
A certificate prepared by the registered professional engineer or architect who prepared the plans in Subsection B(1) above, that the structures in question, together with attendant utility and sanitary facilities, is designed so that:
(a)
Below an elevation 1 1/2 feet above the base
flood elevation, the structure is watertight with walls substantially
impermeable to the passage of water.
(b)
The structure will withstand the hydrostatic,
hydrodynamic buoyant, impact, and other forces resulting from the
flood depths, velocities, pressures, and other factors associated
with the base flood.
C.
Plans of all proposed buildings, structures and other
improvements, drawn at suitable scale showing the following:
(1)
The proposed lowest floor elevation of any proposed
building based upon the National Geodetic Vertical Datum of 1929;
(2)
The elevation of the one-hundred-year flood;
(3)
If available, information concerning flood depths,
pressures, velocities, impact and uplift forces and other factors
associated with a one-hundred-year flood; and
(4)
Detailed information concerning any proposed floodproofing
measures.
[1]
Editor's Note: See Ch. 125, Construction Codes.
A copy of all applications and plans for construction
or development in the Floodplain Conservation District to be considered
for approval shall be submitted by the Borough Building Inspector
to the Pennsylvania Department of Environmental Protection, Montgomery
County Conservation District, and appropriate municipal agencies for
review and comment prior to the issuance of a building permit. The
recommendations of all technical review agencies shall be considered
by the Borough Building Inspector for possible incorporation into
the proposed plan.
Prior to the issuance of any building permit,
the Borough Building Inspector shall review the application for a
permit to determine if all other necessary governmental permits such
as those required by state and federal laws have been obtained including
those required by Act 537, the Pennsylvania Sewage Facilities Act,[1] the Dam, Safety and Encroachment Act,[2] and the Federal Water Pollution Control Act Amendments
of 1972, Section 404, 33, U.S.C. § 1334. No permit shall
be issued until this determination has been made.
For purposes of implementation of these provisions, start of construction shall be considered as defined in § 173-20.
